Log in
Register
Menu
Log in
Register
Home
What's new
Latest activity
Authors
Forums
New posts
Search forums
What's new
New posts
Latest activity
Members
Current visitors
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Satellite Meters and Installation Equipment
Using the "138MHz-4.4GHz USB SMA Source/Signal Generator/Simple Spectrum Analyzer" for TV/CATV/SAT
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="vma" data-source="post: 996881" data-attributes="member: 256592"><p>Hi,</p><p></p><p>I'm working on automatic satellite identification through transponder pattern recognition. This will identify the satellite through the typical spectrum pattern and does not rely on NIT or a signal lock. Hence, the identification happens much before the satellite is correctly tuned - great for satellite dish setup.</p><p></p><p>But this functionality is great to identify an unknown satellite, too. How often does it happen that you are moving your dish around with STEP W/E and find some new transponder, only to later find out that you were on the wrong satellite?</p><p></p><p>First results:</p><p></p><p>[MEDIA=youtube]H4OSzgj5xA4[/MEDIA]</p><p></p><p>Right now, my goal is to be able to read standard satellite *.ini format style transponder lists (like the ones generated on <a href="http://satellites-xml.eu/" target="_blank">http://satellites-xml.eu/</a>).</p><p></p><p>This requires to read in those files and reorganise them in memory to separate the four bands (VL, HL, VH and HH).</p><p></p><p>Then I need to add some clever stuff to evaluate the recognition score for each satellite candidate for the current spectrum - the current algorithm just picks the satellite with the best score. The problem is that the pre-made satellite transponder lists include transponders from all beams, regardless of the fact that one cannot receive certain beams on certain regions. This can be a problem, because a lower score could still mean the right satellite.</p><p></p><p>My current implementation uses hand-made lists, which naturally just include the transponders I can actually receive (these lists are saved by my software itself), but there is no fun in doing that: I want to be able to just use default sat lists, especially to be able to recognize unknown satellites!</p><p></p><p>And this gave me a new idea: the software could alert if a transponder appears, which is currently NOT present in the default transponder list! This means we are looking at a new transponder or a wild feed...</p><p></p><p>Also, I want to separate the satellite identification from the transponder recognition, because recognizing transponders can be usefull for other applications beyond satellite receptions, i.e. to quickly determine the frequencies on an unknown CATV network, DVB-T/T2 transponders, radio stations, etc.</p><p></p><p>Regards,</p><p>Vitor</p></blockquote><p></p>
[QUOTE="vma, post: 996881, member: 256592"] Hi, I'm working on automatic satellite identification through transponder pattern recognition. This will identify the satellite through the typical spectrum pattern and does not rely on NIT or a signal lock. Hence, the identification happens much before the satellite is correctly tuned - great for satellite dish setup. But this functionality is great to identify an unknown satellite, too. How often does it happen that you are moving your dish around with STEP W/E and find some new transponder, only to later find out that you were on the wrong satellite? First results: [MEDIA=youtube]H4OSzgj5xA4[/MEDIA] Right now, my goal is to be able to read standard satellite *.ini format style transponder lists (like the ones generated on [URL]http://satellites-xml.eu/[/URL]). This requires to read in those files and reorganise them in memory to separate the four bands (VL, HL, VH and HH). Then I need to add some clever stuff to evaluate the recognition score for each satellite candidate for the current spectrum - the current algorithm just picks the satellite with the best score. The problem is that the pre-made satellite transponder lists include transponders from all beams, regardless of the fact that one cannot receive certain beams on certain regions. This can be a problem, because a lower score could still mean the right satellite. My current implementation uses hand-made lists, which naturally just include the transponders I can actually receive (these lists are saved by my software itself), but there is no fun in doing that: I want to be able to just use default sat lists, especially to be able to recognize unknown satellites! And this gave me a new idea: the software could alert if a transponder appears, which is currently NOT present in the default transponder list! This means we are looking at a new transponder or a wild feed... Also, I want to separate the satellite identification from the transponder recognition, because recognizing transponders can be usefull for other applications beyond satellite receptions, i.e. to quickly determine the frequencies on an unknown CATV network, DVB-T/T2 transponders, radio stations, etc. Regards, Vitor [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Satellite Meters and Installation Equipment
Using the "138MHz-4.4GHz USB SMA Source/Signal Generator/Simple Spectrum Analyzer" for TV/CATV/SAT
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top